Samsung AE071MNMPEH, Installation Manual

Page: 14 / 40

14
Installation Procedure
Ins
tallation Pr
oc
edur
e
English
5 Check if you flared the pipe correctly. There are some
examples of incorrectly flared pipes below.
Inclined Damaged
Surface
Cracked Uneven
Thickness
6 Align the pipes and tighten the flare nuts first manually
and then with a torque wrench, applying the following
torque.
R 0.4~0.8
90°±2°
45
°±2°
L
D
Outer
diameter (D,
mm)
Connection Torque
Flare dimension
(L, mm)
kgf•cm N•m
6.35 140~180 14~18 8.70~9.10
9.52 350~430 34~42 12.80~13.20
2.70 500~620 49~61 16.20~16.60
15.88 690~830 68~82 19.30~19.70
CAUTION
• In case of needing brazing, you must work with
nitrogen gas blowing.
Step 7 Connecting the assembly
pipes to the refrigerant pipes
There are two refrigerant pipes of different diameters :
• A smaller one for the liquid refrigerant
• A larger one for the gas refrigerant
• The inside of copper pipe must be clean & has no dust
1 Remove the pinch pipe on the pipes and connect the
assembly pipes to each pipe, tightening the nuts, first
manually and then with a torque wrench, a spanner
applying the following torque.
Torque wrench
Flare nut Union
Spanner
Refrigerant oil
Outer diameter (D) Torque (N•m)
Ø6.35 mm 14 ~ 18
Ø9.52 mm 34 ~ 42
Ø12.70 mm 49 ~ 61
Ø15.88 mm 68 ~ 82
Ø19.05 mm 100 ~ 120
NOTE
• If the pipes must be shortened refer to page
13
,
Step 6 Cutting or flaring the pipes
2 Be sure to use insulator which is thick enough to cover
the refrigerant tube to protect the condensate water
on the outside of pipe falling onto the floor and the
efficiency of the unit will be better.
3 Cut off any excess foam insulation.
4 Be sure that there must be no crack or wave on the
bended area.
5 It would be necessary to double the insulation
thickness(10mm or more) to prevent condensation even
on the insulator when if the installed area is warm and
humid.
6 Do not use joints or extensions for the pipes that
connect the indoor and outdoor unit. The only permitted
connections are those for which the units are designed.